Copyright>        OpenRadioss
Copyright>        Copyright (C) 1986-2023 Altair Engineering Inc.
Copyright>
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Copyright>
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Copyright>        Commercial Alternative: Altair Radioss Software
Copyright>
Copyright>        As an alternative to this open-source version, Altair also offers Altair Radioss
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Chd|====================================================================
Chd|  I2SMS26                       source/interfaces/interf/i2sms26.F
Chd|-- called by -----------
Chd|        I2FOR26                       source/interfaces/interf/i2for26.F
Chd|        I2FOR26P                      source/interfaces/interf/i2for26p.F
Chd|-- calls ---------------
Chd|        MESSAGE_MOD                   share/message_module/message_mod.F
Chd|====================================================================
      SUBROUTINE I2SMS26(JLT   ,IX1   ,IX2   ,IX3   ,IX4    ,
     .                   NSVG  ,STIF  ,NOINT ,
     .                   DMINT2,NODNX_SMS ,VIS   ,DTI)
C-----------------------------------------------
C   M o d u l e s
C-----------------------------------------------
      USE MESSAGE_MOD
C-----------------------------------------------
C   I m p l i c i t   T y p e s
C-----------------------------------------------
#include      "implicit_f.inc"
#include      "comlock.inc"
C-----------------------------------------------
C   G l o b a l   P a r a m e t e r s
C-----------------------------------------------
#include      "mvsiz_p.inc"
C-----------------------------------------------
C   C o m m o n   B l o c k s
C-----------------------------------------------
#include      "sms_c.inc"
C-----------------------------------------------
C   D u m m y   A r g u m e n t s
C-----------------------------------------------
      INTEGER JLT, NOINT,
     .   IX1(MVSIZ),IX2(MVSIZ),IX3(MVSIZ),IX4(MVSIZ),NSVG(MVSIZ),
     .   NODNX_SMS(*)
      my_real
     .   STIF(4,MVSIZ), VIS(4,MVSIZ), DMINT2(4,*), DTI
C-----------------------------------------------
C   L o c a l   V a r i a b l e s
C-----------------------------------------------
      INTEGER I, IG, NN, NISKYL1, NISKYL
      my_real
     .   DTS, FAC
C=======================================================================
      DO I=1,JLT
        DMINT2(1,I)=ZERO
        DMINT2(2,I)=ZERO
        DMINT2(3,I)=ZERO
        DMINT2(4,I)=ZERO
C
        IF (NSVG(I) < 0) CYCLE
        IF ((IDTMINS_INT == 0 .AND. NODNX_SMS(NSVG(I))+
     .     			NODNX_SMS(IX1(I))+
     .     			NODNX_SMS(IX2(I))+
     .     			NODNX_SMS(IX3(I))+
     .     			NODNX_SMS(IX4(I))==0) .OR.
     .        STIF(1,I)+STIF(2,I)+STIF(3,I)+STIF(4,I)==ZERO) THEN
          CYCLE
        END IF
C
        IF (IDTMINS_INT == 0 .AND. NODNX_SMS(NSVG(I))+
     .     			NODNX_SMS(IX1(I))+
     .     			NODNX_SMS(IX2(I))+
     .     			NODNX_SMS(IX3(I))+
     .     			NODNX_SMS(IX4(I))/=0) THEN
          DTS = DTMINS/DTFACS
          DTI = MIN(DTI,DTMINS)
        ELSE
          DTS = DTMINS_INT/DTFACS_INT
          DTI = MIN(DTI,DTMINS_INT)
        END IF

C
        DMINT2(1,I) = HALF * DTS * ( DTS * STIF(1,I) + VIS(1,I) )
        DMINT2(2,I) = HALF * DTS * ( DTS * STIF(2,I) + VIS(2,I) )
        DMINT2(3,I) = HALF * DTS * ( DTS * STIF(3,I) + VIS(3,I) )
        IF (IX4(I) /= IX3(I)) THEN
          DMINT2(4,I) = HALF * DTS * ( DTS * STIF(4,I) + VIS(4,I) )
        ENDIF
      ENDDO                
C-----------      
      RETURN
      END
C
